For those who are in the starting stage of cnc learing check out this link. The software if free and quite usefull.
www.betatechnical.com
The teacher of the software has a book available. It is excellant. Its written in english with geometry in decimal format.
The book is an option, but the software is free and fully operational.

Ed, You post here too??
Jim

Jim,

I hope that this site can be a learning curve for all users. Haven't heard from you, still want a fixture.
The post on the learning soft ware allows you to put in code and run the file. For those that are new to cnc programming in Fanuc format or Gcode typical, will find this very helpfull.
:)